Carrier 19XL Installation Instructions Manual

Also see for 19XL series: Start-up, operation and maintenance instructions Start-up, operation and maintenance instructions Advance product data Installation instructions Installation instructions

Contents

Carrier 19XL Installation Instructions Manual Manual pdf 20 page image

Freestanding, Field-Installed Starter — Assemble and in-stall compressor terminal box in desired orientation, and cutnecessary conduit openings in conduit support plates. SeeFig. 25 and 27. Attach power leads to compressor terminalsin accordance with job wiring drawings, observing cautionlabel in terminal box. Use only copper conductors. The mo-tor must be grounded in accordance with NEC (National Elec-trical Code), applicable local codes, and job wiring diagrams.Installer is responsible for any damage caused by improperwiring between starter and compressor motor.IMPORTANT: Do not insulate terminals until wiringarrangement has been checked and approved by Car-rier start-up personnel. Also, make sure correct phas-ing is followed for proper motor rotation.Insulate Motor Terminals and Lead Wire Ends — Insulatecompressor motor terminals, lead wire ends, and electricalwires to prevent moisture condensation and electrical arc-ing. For low-voltage units (up to 600 v), obtain insulationmaterial from chiller shipping package consisting of 3 rollsof insulation putty and one roll of vinyl tape.1. Insulate each terminal by wrapping with one layer of in-sulation putty.2. Overwrap putty with 4 layers of vinyl tape.High-Voltage Units — High-voltage units require special ter-minal preparation. Follow local electrical codes for high-voltage installation. The vinyl tape is not acceptable; a highvoltage terminal method must be used.Connect Power Wires to Oil Pump Starter — See Fig. 28.Connect power wires to oil pump starter mounted in chillerpower panel. Use separate fused disconnect or circuit breakeras shown on job wiring diagrams and Fig. 27. Check thatpower supply voltage agrees with oil pump voltage. Followcorrect phasing for proper motor rotation.Do not punch holes or drill into the top surface of thepower panel. Knockouts are provided in the bottom ofthe power panel for wiring connections.LEGEND1 — Disconnect2 — Freestanding Compressor Motor Starter3 — Compressor Motor Terminal Box4 — Chiller Power Panel5 — Control Cabinet6 — Vents7 — Pressure Gages8 — Chilled Water Pump9 — Condenser Water Pump10 — Chilled Water Pump Starter11 — Condensing Water Pump Starter12 — Cooling Tower Fan Starter13 — Disconnect14 — Oil Pump Disconnect (see Note 5)NOTES:1. Wiring and piping shown are for general point-of-connection only and are not intendedto show details for a specific installation. Certified field wiring and dimensional dia-grams are available on request.2. All wiring must comply with applicable codes.3. Refer to Carrier System Design Manual for details regarding piping techniques.4. Wiring not shown for optional devices such as:• remote start-stop• remote alarm• optional safety device• 4 to 20 mA resets• optional remote sensors5. Oil pump disconnect may be located within the enclosure of Item 2 — FreestandingCompressor Motor Starter.Fig. 25 — 19XL With Free-Standing Starter20